Miniature rose plant named  &#39;Poulty015&#39;

ABSTRACT

A new miniature rose plant that has abundant, golden yellow flowers and attractive foliage. The variety successfully propagates from softwood cuttings and is suitable for year-round production in commercial glasshouses. This new and distinct variety has shown to be uniform and stable in the resulting generations from asexual propagation.

BOTANICAL DESIGNATION

Rosa hybrid

VARIETY DENOMINATION

‘Poulty015’

SUMMARY OF THE INVENTION

The present invention constitutes a new and distinct variety of miniature rose plant which originated from a controlled crossing between the female seed parent, an unnamed seedling, and the male pollen parent, also an unnamed seedling.

The two parents were crossed during the summer of 2007 and the resulting seeds were planted in a controlled environment in Fredensborg, Denmark. The new variety, named ‘Poulty015’, originated as a single seedling from the stated cross.

The new variety may be distinguished from its male pollen parent and female seed parent primarily by flower coloration and growth habit.

The objective of the hybridization of this rose variety for commercial culture was to create a new and distinct variety with unique qualities, such as:

1. Uniform and abundant golden yellow flowers;

2. Vigorous and compact growth;

3. Year-round flowering under glasshouse conditions;

4. Suitability for production from softwood cuttings in pots;

5. Durable flowers and foliage which make a variety suitable for distribution in the floral industry.

This combination of qualities is not present in previously available commercial cultivars of this type, known to the inventor, and distinguish ‘Poulty015’ from all other varieties of which we are aware.

As part of the rose development program, Mogens N. Olesen germinated the seeds from the aforementioned hybridization and conducted evaluations on the resulting seedlings in a controlled environment in Fredensborg, Denmark. ‘Poulty015’ was selected by the inventor as a single plant from the progeny of the hybridization in 2007.

Asexual reproduction of ‘Poulty015’ by cuttings was first done by Mogens N. Olesen in the nursery in Fredensborg, Denmark in 2008. This initial and other subsequent propagations conducted in controlled environments have demonstrated that the characteristics of ‘Poulty015’ are true to type and are transmitted from one generation to the next.

DESCRIPTION OF THE DRAWING

The accompanying color illustration shows as true as is reasonably possible to obtain in color photographs of this type, the typical characteristics of the buds, flowers, leaves, and stems, of ‘Poulty015’. Specifically illustrated in the drawing are flowers at various stages of development, flower in parts, leaves, and stems.

DETAILED DESCRIPTION OF THE VARIETY

The following is a description of ‘Poulty015’, as observed in its growth in glasshouses in Half Moon Bay, Calif. Observed plants are 3 months of age and were cultivated in 10.5 cm pots. Color references are made using The Royal Horticultural Society (London, England) Colour Chart, 2001, except where common terms of color are used.

For a comparison, several physical characteristics of the rose variety ‘Poulmist’, U.S. Plant Pat. No. 18,975 are compared to ‘Poulty015’ in Chart 1.

CHART 1 ‘Poulty015’ ‘Poulmist’ Petalage: 75 petals total, 20 to 25 35 to 40 petals of which are petaloids Flower Diameter: 50 mm 40 mm General Tonality On open flower Yellow Yellow Group 12B of Flower Color: Group 10C with intonations of Yellow-Orange Group 23C

-   Flower and flower bud:     -   -   Blooming habit.—Continuous.         -   Flower bud.—Size: Upon opening, 21 mm in length from base of             receptacle to end of bud. 19 mm in diameter. Bud form:             Ovate. Bud color: As sepals unfold, petals are Orange Group             29C, Yellow-Orange Group 18B, and Yellow Group 8C. Sepals:             Upper Surface: Color: Yellow-Green Group 144B. Texture:             Smooth, moderately pubescent. Lower Surface: Color: Yellow             Green Group 144A. Texture: Smooth. Shape: Apex: Cirrhose.             Base: Flat at union with receptacle. Margins: Margins have             moderate foliaceous appendages on three of the five sepals.             Size: 25 mm long by 7 mm wide. Receptacle: Surface Texture:             Smooth. Shape: Broad funnel shaped. Size: 5 mm tall and 9 mm             wide. Color: Yellow Green Group 144B. Pedicel: Surface:             Somewhat rough due to the presence of stipitate glands.             Length: 20 mm on average. Diameter: Generally 3 mm. Color:             Yellow-Green Group 145B. Strength: Strong. Borne: Singly.         -   Flower bloom.—Fragrance: Moderate floral scent. Duration: As             a pot plant, flowers last up to 28 days. Size: Flower             diameter is 50 mm when open. Flower depth is 25 mm. Form:             General shape is a hybrid tea with a high pointed center. As             the flower opens, the central whorl of petals divides into             quarter sections. Shape of flower, side view: Upon opening,             the upper portion is flat. The lower portion is concave.         -   Petalage.—Under normal conditions, flowers have 75 petals             total, 20 to 25 of which are petaloids.         -   Color.—General Tonality: On open flower Yellow Group 10C             with intonations of Yellow-Orange Group 23C. Petals:             Outermost petals are Yellow Group 8C with light shaded             intonations of Yellow-Orange Group 18B on the upper surface.             Lower surface is Yellow Group 8B with shaded intonations of             Orange Group 26B. Innermost petals are Yellow Group 8C with             light shaded intonations of Yellow-Orange Group 18B on the             upper surface. Lower surface is Yellow Group 8B with shaded             intonations of Orange Group 26B to Red Group 40D. No basal             petal spots. The petal color is the same for flowers upon             opening and after opening.         -   Petal characteristics.—Petal Reflex: Strong and moderate.             Margin: Entire, with a slight point at the center, slight             undulations. Shape: Overall, broad elliptic. Apex shape:             Cuspidate. Base shape: Obtuse. Size: 26 mm (l) by 30 mm (w).             Texture: Smooth. Thickness: Average.         -   Petaloids.—Quantity: 20 to 25 on average. Shape: Rounded.             The apex is rounded. The base is acute. Color: Upper and             lower surfaces are Yellow Group 8C with intonations of Red             Group 48C at margins. Size: 6 mm (l) by 6 mm (w).         -   Reproductive organs.—Pollen: None Observed. Anthers: Size: 1             mm long. Color: Yellow Group 9B. Quantity: 10 on average.             Filaments: Color: Green-White Group 157C. Length: About             1 mm. Pistils: Length: About 3 mm long. Quantity: 10 on             average. Stigmas: Superior relative to the length of the             filaments and the height of the anthers. Color: Yellow Group             1D. Styles: Color: Yellow Group 1D. Seed formation: Not             observed. -   Plant:     -   -   Plant growth.—Upright. Plants are 16 cm in height on             average, and 13 cm wide.         -   Stems.—Color: Juvenile growth: Yellow-Green Group 144B.             Mature growth: Yellow-Green Group 144A. Length: Canes are 10             cm from the base of the plant to the flowering portion.             Diameter: 3 mm. Internodes: On mature canes, there is an             average distance of 21 mm between nodes. Surface Texture:             Young and mature wood is smooth.         -   Prickles.—None observed.         -   Plant foliage.—Compound Leaf size: 80 mm (l) by 45 mm (w).             Quantity: 5 leaves per 10 cm of stem. Leaf bearing angle: 60             degrees to the stem. Color of juvenile foliage: Upper Leaf             Surface: Yellow-Green Group 144A with anthocyanin the color             of Greyed-Purple Group 184A. Lower Leaf Surface:             Yellow-Green Group 144A with anthocyanin the color of             Greyed-Purple Group 184A. Color of mature foliage: Upper             Leaf Surface: Yellow-Green Group 147A. Lower Leaf Surface:             Yellow-Green Group 147B.         -   Plant leaves and leaflets.—Stipules: Size: About 4 mm in             length. Shape: Linear, slightly broad based with outward             extending apecies. Margins: Finely serrated with few             stipitate glands. Color: Yellow-Green Group 144A. Petiole:             Length: 12 mm on average. Diameter: About 1 mm. Upper             surface: Yellow-Green Group 146B. Stipitate glands. Lower             surface: Yellow-Green Group 144B. Small prickles. Rachis:             Length: 30 mm on average. Diameter: About 1 mm. Upper             surface: Yellow-Green Group 146B. Stipitate glands. Lower             surface: Yellow-Green Group 144B. Small prickles. Leaflet:             Number of leaflets: 5 on normal leaves in middle of the             stem. Occasionally 7 leaflets. Size: 34 mm in length by 21             mm wide. Margin: Serrate. General Shape: Elliptical. Apex             Shape: Acute. Base Shape: Round. Texture: Smooth.             Arrangement: Odd pinnate. Venation: Reticulate. Leaf Gloss:             Slightly glossy.         -   Cold hardiness.—The variety is tolerant to USDA Cold             Hardiness Zone 6.         -   Heat tolerance.—The variety has been found to be suitable             for climate conditions found in the American Horticulture             Society heat zone 7. 

1. A new and distinct variety of rose plant of the miniature class named ‘Poulty015’, substantially as illustrated and described herein, due to its abundant, golden yellow flowers, vigorous growth, compact habit, suitability for production from softwood cuttings in pots, and durable flowers and foliage that make the variety suitable for distribution in the floral industry. 